ChatGPT-Image-2026nian9yue7ri-09_54_25

Buying Guide Landing Page

Maanshan Fangyuan Precision Machinery Co., Ltd. specializes in the R&D, design, manufacturing and testing of slewing bearings for industrial equipment requiring reliable rotary support under axial, radial and overturning moment loads.


With more than 40 years of manufacturing experience, Fangyuan Precision provides a broad range of slewing ring bearing configurations for construction machinery, heavy engineering equipment, clean energy systems, medical equipment and other demanding rotary applications.

Get a Quote

A Specialized Slewing Bearing Manufacturer

Fangyuan Precision has focused on slewing bearing manufacturing since 1984 and integrates product development, engineering, production and testing within one manufacturing system. Our product portfolio covers more than 3,000 specifications and multiple ball and roller bearing structures for different equipment requirements.

40+ Years of Manufacturing Experience

Fangyuan Precision is among China's early slewing bearing manufacturers. Decades of specialization provide a strong foundation for serving both established industrial applications and new equipment development projects.

Two Production Bases

Our precision and heavy-duty production bases support different product sizes, structures and manufacturing requirements, providing capacity for a broad range of industrial slewing bearing projects.

600+ Production and Testing Devices

Extensive manufacturing and inspection resources support machining, production control and product testing throughout the slewing bearing manufacturing process.

CNAS-Certified Testing Capability

Our testing center supports systematic product inspection and reliability evaluation, helping maintain quality control from incoming materials through finished slewing bearings.
ChatGPT Image 2026年9月7日 09_54_25 (2)

Hot Products

Wind Power Generation - 2MW Pitch Control - B.14.60.2950E
Double-Row Ball Slewing Bearing

Slewing Ring for Wind Power 2MW Pitch Control B-14-60-2950E

Wind Power Generation - 8MW Yaw - 3500.16.125.144
Three-Row Roller Slewing Bearing

Slewing Ring for Wind Power 8MW Yaw System 3500-16-125-144

Construction Machinery - 320-ton Crawler Crane - 131.45.2500.10Z1
Three-Row Roller Slewing Bearing

Slewing Ring for 320-ton Crawler Crane 131-45-2500-10Z1

Construction Machinery - 200-ton Excavator - 134.50.2840
Three-Row Roller Slewing Bearing

Slewing Ring for Construction 200-ton Excavator 134-50-2840

Wind Power Generation - 3.2MW Pitch Control - LQNA2950.75F
Double-Row Ball Slewing Bearing

Slewing Ring for Wind Power 3.2MW Pitch Control LQNA2950-75F

Construction Machinery - 6-ton Excavator - QNA730.22Z19
Single-Row Ball Slewing Bearings

Slewing Ring for Construction 6-ton Excavator QNA730-22Z19

Medical Equipment - Medical Pendant Systems - QUA162.20
L-Type Slewing Bearing

Slewing Ring for Medical Pendant Equipment Systems QUA162-20

Construction Machinery - 100-ton Excavator - LQNA1815.45Z1
Double-Row Ball Slewing Bearing

Slewing Ring for Construction 100-ton Excavator LQNA1815-45Z1

Construction Machinery - Excavators - QNA730.22Z19 (6 Tons), 013.32.1312 (20 Tons), 013.40.1524Z1 (30 Tons)
Double-Row Non-Equal Diameter Ball Slewing Bearing

Multi-size Slewing Circle for Excavators 013 Series

Construction Machinery - Screw Conveyor for Tunnel Boring Machines - FB-132.32.957 Joint Ball Bearing
Cross Roller Slewing Bearing

Special Rotary Bearing for TBM FB-132-32-957

ChatGPT Image 2026年9月7日 09_54_25 (4)

What Does a Slewing Bearing Do?

A slewing bearing, also commonly called a slewing ring bearing, is designed to support rotational movement while carrying combined loads.

Unlike conventional bearings that primarily manage one dominant load direction, slewing bearings can be designed to accommodate axial loads, radial loads and overturning moments acting simultaneously on large rotating structures.

This makes them particularly important in equipment where one structure must rotate relative to another while continuing to support substantial operational loads.

Depending on the application, the slewing bearing may also incorporate internal gearing, external gearing or a gearless structure so that the bearing can be integrated with the equipment's drive and positioning system.

Why Choose Fangyuan Precision?

Specialized Since 1984


More than four decades of specialization provide extensive manufacturing experience across different generations of slewing bearing applications.

Integrated R&D, Design and Manufacturing

Product development, engineering, production and testing are integrated within Fangyuan Precision's operating system.

Strong R&D Infrastructure


Fangyuan Precision has established provincial and national-level technical platforms and holds more than 90 patents.

Precision and Heavy-Duty Production Capacity

Two specialized production bases allow Fangyuan Precision to support both precision products and larger heavy-duty bearing projects.

Testing and Quality Assurance


A CNAS-certified testing center and extensive testing resources support quality control and product verification.

Engineering and Project Support


Customers can receive support for bearing selection, application-specific design and technical installation requirements.

Slewing Bearings for Different Industries

ChatGPT Image 2026年9月7日 10_27_57 (1)

Construction Machinery


The range covers slewing ring solutions for compact excavators as well as significantly larger construction machinery, supporting the rotating connection between equipment structures under changing loads and demanding site conditions.

ChatGPT Image 2026年9月7日 10_27_57 (2)

Cranes and Heavy Engineering Equipment

Fangyuan Precision supplies heavy-duty slewing bearing solutions for crawler cranes and other engineering machinery, including three-row roller structures developed for demanding rotational equipment.

ChatGPT Image 2026年9月7日 10_27_57 (3)

Port and Metallurgical Equipment

Fangyuan Precision's application coverage includes port and metallurgical equipment, supported by configurable bearing structures, gearing, materials and surface protection options for different industrial conditions.

ChatGPT Image 2026年9月7日 10_27_58 (4)

Wind and Solar Energy Equipment

The company's product portfolio includes wind turbine slewing bearings for pitch and yaw systems, while its broader application capability also extends to solar-energy equipment requiring reliable rotational support and positioning.

ChatGPT Image 2026年9月7日 10_27_58 (5)

Medical Equipment


Fangyuan Precision serves medical equipment applications including CT systems and medical pendant equipment, supported by compact and high-precision slewing bearing configurations.

ChatGPT Image 2026年9月7日 10_27_59 (6)

Tunnel Boring and Specialized Engineering Machinery

Fangyuan Precision's cross roller product range includes rotary bearing solutions for TBM equipment, while customized dimensions, mounting structures and load adaptation can be evaluated for other specialized machinery projects.

Flexible Supply for OEM and Industrial Projects

Fangyuan Precision works with equipment manufacturers and industrial customers whose procurement requirements may change from prototype development to recurring production. The supply approach can therefore be adapted according to project stage, bearing structure and order volume.

Sample and Trial Orders

Sample orders are available, while the applicable MOQ depends on the specific slewing bearing type.

This allows customers to discuss early-stage validation or project requirements before moving into larger procurement quantities.

OEM and Bulk Production

Fangyuan Precision supports OEM requirements, including customized bearing design, customer branding and individualized packaging where required.

Production can also support different order volumes, from project-based requirements to larger recurring quantities.

Everything You Need to Know Before Ordering

What types of slewing bearings does Fangyuan Precision manufacture?
Our current product range includes single-row ball slewing bearings, double-row ball slewing bearings, double-row non-equal diameter ball slewing bearings, L-type slewing bearings, three-row roller slewing bearings and cross roller slewing bearings.
Can you manufacture custom slewing bearings?
Yes. Fangyuan Precision supports customized dimensions, raceway configurations, load adaptation, materials, heat treatment, surface treatment, gear structures, mounting-hole arrangements, seals and selected functional features.
What slewing bearing sizes can be customized?
Customized inner diameter, outer diameter and width can be developed according to the equipment installation space.
The current customization capability covers bearing diameters from approximately Φ100 mm to Φ5000 mm, subject to final engineering evaluation and bearing structure.
What industries use Fangyuan slewing bearings?
Applications include construction machinery, engineering machinery, port and metallurgical equipment, clean energy systems including wind and solar, medical equipment and specialized engineering machinery.
Public product applications include excavators, crawler cranes, wind turbine pitch and yaw systems, medical pendant equipment and tunnel boring machinery.
What is the MOQ for slewing bearings?
MOQ depends on the bearing structure and specific product requirement.
Sample orders are accepted, making it possible to discuss prototype, replacement and new-equipment projects before larger-volume procurement.
How does Fangyuan Precision control slewing bearing quality?
Fangyuan Precision applies quality control throughout the manufacturing process and operates its own testing infrastructure. The company's CNAS-certified testing center and production/testing equipment support inspection and reliability evaluation from materials through finished products.
ChatGPT-Image-2026nian9yue7ri-09_54_25

Start Your Project with Our Manufacturing Team

Our engineering and sales teams are ready to support your next project with manufacturing capability, customization advice, quality documents, and export delivery support.

Send sourcing requirements

Contact us

FANGYUAN PRECISION

Our company is a specialized manufacturer of slewing bearings, integrating R&D, design, production, and testing. With over 40 years of manufacturing history, we currently have total assets exceeding 1.2 billion RMB and more than 524 employees...
 tel  +86-13955534080
   +86-555-3503222
WhatsApp: +86-18355597548
Address: West ChaoShan Road, Economic and Technical Development Zone, Maanshan, Anhui, China
 
Copyright © 2025 Maanshan Fangyuan Precision Machinery Co., Ltd. All rights reserved. Sitemap Privacy Policy     皖ICP备2021017286号-2